First a word about Tudor. I chose to order the Dynamator from their website, which is in the UK. The price is listed as GBP 199.95, which is the same on their EBay shop.
I enquired if this included VAT, which it does, but they were not willing to discount me the VAT even though I am in Australia. I was vaguely told that the price appears differently if you have a non UK address on checkout; it doesn't.
I ordered one anyway as the postage on their website was less than from eBay, and it duly arrived well packed but without the specifically promised installation instructions. I contacted Tudor by email, and the reply was a link to a diagram on another company's site which was less than helpful.
Fortunately a little Googling turned up this diagram.
I opened the RB340 regulator and removed the 3 coils.
As recommended I soldered in a 40A fuse between the D and B contacts
Installed, the regulator looks exactly the same as stock, and the Dynamator itself looks pretty much like the original.
To get the alternator light to work you need to connect the field wire (brown/green) to the wire to the light (smaller brown/yellow).
For the time being I've just done this with a bit of metal but I'll work out a more aesthetic fix on the dummy regulator later.
